Improvement in lubricating apparatus for steam-engines



rrED STATES PATENT OFFICE.

MOSES N. WARD, OF SOMERVILLE, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND FRANKLIN FRIEND, OF SAME PLACE.

IMPROVEMENT IN LUBRICATlNG APPARATUS FOR STEAM-ENGINES.

Specification forming part of Letters Patent No. 118,078, dated August 15, 1871.

To all whom t may concern:

Be it known that I, MOSES N. WARD, of Somerville, of the county of Middlesex and State of Massachusetts, have invented an Improved Lubricating Apparatus for Steam-Engines; and do herebv declare the sa-me to be fully described in the following specification and represented in the accompanying drawing, of which- Figure l is a side elevation, and Fig'. 2 a vertical section of it.

In such drawing, A denotes an oil-reservoir screwed on the top of another' or auxiliary chamber or vessel, B. There extends verticall)7 and axially through the two vessels A B a valvestem, C, carrying two valves, a b, arranged in it as shown, and within the auxiliary vessel B. The lower of these valves is to operate with a seat, c, at the bottom of the vessel B, the upper valve being to also operate with a corresponding seat, d, in the top of such vessel or lower part or' a passage, e, which opens out of the bottom of the vessel A into the vessel B and around the valvestem. There is on the said stem a shoulder, j', to supporta helical spring, g, which encompasses the valve-stem, rests against the top of the auxiliary vessel, and operates to force down the lower valve upon its seat, the upper valve at the same time being pressed awaT from its seat. Alever, D, pivoted to a standard, E, (erected on the top ofthe vessel A,) and extended through a head, F, screwed upon the valve-stem, serves to enable a person to raise the valve-stem so as to ele vate the upper valve up to its seat. A small filling-mouth or conical tunnel, G, is lixed on the top ofthe vessel A, opens through such, and is provided with a valve, h, to open downward, the stem fi being exten ded up through the tunnel and provided with a spring, lc, for forcing the valve up to its seat. The spring, arranged as shown, is supported on a bracket, I., projecting from the top of the vessel A. The valve-stem is made tubular or chambered, as shown at m, from its lower end nearly up to its top, the same being for the admission of steam into the part within the chamber, in order to melt the grease or tallow that may be placed therein.

The lubricating apparatus so made is designed for use on the steam-chest of a locomotive or stationary steam-en gine, it being applied thereto so that oil or grease may be discharged into the chest and from the apparatus as circumstances may require. The vessel B is to gauge the amount to be discharged at any time from the main reservoir A. l

Vhen the valve-stein is at its lowest position the upper valve will be off its seat and the lowerl valve be on its seat.l The oleaginous matter of the reservoir Awill then be free to ilow into the receiver B, and will do so until the latter may be lled with it. Now, in raising the valve-stem so as to lift the upper valve up to its seat and the lower valve oftl its seat, the iiuid in the reservoir A will be estopped from iowing therefrom, and the charge in the receiver B will be free to and will escape from the same into the steam-chest.

There may be a conduit, I, iixed to the lower O, the valves c b, the valve-seats o d, the pas-v sage e, the shoulder j', and the spring g, all being to operate as described.

2. The combination ofthe steam-space or heating-chamber m with the valve-stem C, the two vessels A B, the two valves a b, and their seats c d, arranged as described.

The chamber m, arranged to extend from the lower part of the valve-stem up into the two vessels A B, as set forth, such chamber being combined with the said vessels, the valve-stem O, and its valves a b, and their seats c d, arranged as explained.

Witnesses: MOSES N. WARD.

R. H. EDDY, J. R. SNOW. 

